Melissa Castillo, PHD
NPI 1548496458 · Clinical Psychologist · Greenwich, CT
Melissa Castillo, PHD is a Clinical Psychologist provider in Greenwich, CT (NPI 1548496458).
Provider details
- NPI number
- 1548496458
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-06-05
- Last updated
- 2023-01-18
- Certified
- 2023-01-18
Frequently asked questions
- What is Melissa Castillo's NPI number?
- Melissa Castillo's National Provider Identifier (NPI) is 1548496458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Castillo's specialty?
- Melissa Castillo is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Melissa Castillo located?
- Melissa Castillo's practice location on file with NPPES is 777 W Putnam Ave Ste 300, Greenwich, CT 06830-5000.
- What is Melissa Castillo's phone number?
- The practice phone number listed in the NPPES registry for Melissa Castillo is (203) 649-8200.
- Is Melissa Castillo's NPI active?
- Yes — Melissa Castillo's NPI (1548496458) is active in the NPPES registry as of the last update on 2023-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.